;(function(){
    function setMetaArgs(targetWidth){
        var width = window.screen.width,
            scale = width/targetWidth,
            meta = document.createElement('meta');
        meta.name = 'viewport',
        meta.content = 'width='+ targetWidth +',initial-scale='+ scale +',minimum-scale='+ scale
                      +',maximum-scale='+ scale +',user-scalable=no';
        document.getElementsByTagName('head')[0].appendChild(meta);
    }
    setMetaArgs(750);
})();